[CedarWood]

I have two 10/2 NM cables I need to bring in through the hole in the house into the 4x4x4 PVC junction box pictured. One cable will be connected to the connect my 10-2 NM cable to the THWN stranded cable going to my outdoor condenser for a mini split system; the other will be capped and sit there until we decide one mini split system isn't enough.

My question is, what is the proper connector for bringing the NM indoor cable into the outdoor box? I bought the 1” sealing connector conduit fitting pictured for this, but not sure that is to code?

BTW, 3/4" conduit will be glued on the top hole of the j box to go to the disconnect.

 

[HandyAndyInNC]

That is for small service entrance cable. You should have a disconnect on the outside. That way it can be turned off for maintenance. Use liquid tight connectors from the disconnect to the unit. Also, cut the hole in the bottom of the box, that will help keep water out of the box.


Why is it that people always want to work on the most dangerous utility in their house when they have no professional training, no work experience or enough knowledge with electrical principles, theories or practices or materials to use?

 

[CedarWood]

Thank you Handy Andy,
I stated the reason for the hole is to run conduit into the disconnect above the junction box- otherwise the disconnect box would be a few inches off the ground and not readily accessible. I have a 6 foot whip from the disconnect with liquid tight connector to go to unit.

This is a junction box to go up to the disconnect. My question is what is the proper connection for the NM cables to go into the back of this junction box? Is it the same liquid tight connector that goes on the flexible conduit? That doesn't seem right.

 

[HandyAndyInNC]

Sorry, but I do not see any reference to a disconnect breaker box any where in your post. I read over it three times now. Why would you add another junction point in the middle, it is not needed. Use a piece of liquid tight from the bottom of the disconnect to the unit. That is more than readily accessible. Even if it is only a couple inches off the ground. Use a weather tight disconnect box. I would use liquid tight from the inside to the disconnect box. Pitch it down so that water cannot run into the house if it happens to get into the disconnect or the hole in the wall.

I used a large piece of schedule 80 for a tunnel from the edge of the house to the unit on each of the 3 AC compressors that we have. That way the liquid tight could be inside the pvc laying on the ground so that no one will trip over it, or the mow-blow-and-go guys will not hit it when mowing. I also left plenty of slack in the wire on the inside. I used BX, or what is now MC to the box on the inside, then switched over to pvc out of the back of the metal junction box to the back of the disconnect on the outside. But I did not cut the conductors in the box on the inside. Never make a cut in the conductors unless you have no other choice.

 

[jbfan]

Thank you Handy Andy,
I stated the reason for the hole is to run conduit into the disconnect above the junction box- otherwise the disconnect box would be a few inches off the ground and not readily accessible. I have a 6 foot whip from the disconnect with liquid tight connector to go to unit.

This is a junction box to go up to the disconnect. My question is what is the proper connection for the NM cables to go into the back of this junction box? Is it the same liquid tight connector that goes on the flexible conduit? That doesn't seem right.

Drill a 1 inch hole into the back of the box, use a TA and a piece of pipe to stick through the wall in the open space inside the house.